My Pennzoil 16 gallon drum is now hard at work holding gardening supplies. It was only $10 and I know gas and oil is huge so I snagged it. It is not in the best condition, I think aluminum cans were placed it over the last few years as "Alum" is written on one side. It is also not in the worst condition. It isn't a coin so it doesn't have to be in mint condition.
It does have great graphics and colors but I am not sure how old it is. Someone told me 1950s/60s. I have not been able to find a anything on the net other than people guessing as usual.
It may have held grease so I am not listing it as an oil can.